Home / 13,829.04-19,083.60-7,860.96

Finding the Fourth Proportional to 13,829.04, 19,083.60 and 7,860.96

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Solution

The fourth proportional to 13,829.04, 19,083.60 and 7,860.96 is: 10,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.04 : 19,083.60 = 7,860.96 : x
  2. Step 2: Convert to fraction form
    13,829.04/19,083.60 = 7,860.96/x
  3. Step 3: Cross multiply
    13,829.04x = 19,083.60 × 7,860.96
  4. Step 4: Simplify right side
    13,829.04x = 150,015,416.26
  5. Step 5: Solve for x
    x = 150,015,416.26/13,829.04
  6. Step 6: Final answer
    x = 10,847.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.